{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import ee\n",
    "import geemap\n",
    "import os"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "geemap.show_youtube('ou-Xm3CLitM')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "Map = geemap.Map()\n",
    "Map"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Add Earth Engine dataset\n",
    "dem = ee.Image('USGS/SRTMGL1_003')\n",
    "\n",
    "# Set visualization parameters.\n",
    "dem_vis = {\n",
    "  'min': 0,\n",
    "  'max': 4000,\n",
    "  'palette': ['006633', 'E5FFCC', '662A00', 'D8D8D8', 'F5F5F5']}\n",
    "\n",
    "# Add Earth Engine DEM to map\n",
    "Map.addLayer(dem, dem_vis, 'SRTM DEM')\n",
    "\n",
    "# Add Landsat data to map\n",
    "landsat = ee.Image('LE7_TOA_5YEAR/1999_2003')\n",
    "\n",
    "landsat_vis = {\n",
    "    'bands': ['B4', 'B3', 'B2'], \n",
    "    'gamma': 1.4\n",
    "}\n",
    "Map.addLayer(landsat, landsat_vis, \"LE7_TOA_5YEAR/1999_2003\")\n",
    "\n",
    "states = ee.FeatureCollection(\"TIGER/2018/States\")\n",
    "Map.addLayer(states, {}, 'US States')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "out_dir = os.path.join(os.path.expanduser('~'), 'Downloads')\n",
    "out_dem_stats = os.path.join(out_dir, 'dem_stats.csv')  \n",
    "\n",
    "# Allowed output formats: csv, shp, json, kml, kmz\n",
    "# Allowed statistics type: MEAN, MAXIMUM, MINIMUM, MEDIAN, STD, MIN_MAX, VARIANCE, SUM\n",
    "geemap.zonal_statistics(dem, states, out_dem_stats, statistics_type='MEAN', scale=1000)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "out_landsat_stats = os.path.join(out_dir, 'landsat_stats.csv')  \n",
    "geemap.zonal_statistics(landsat, states, out_landsat_stats, statistics_type='SUM', scale=1000)"
   ]
  }
 ],
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